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NRF24L01 + NRF24L01P 2.4GHz Transceiver IC

The nRF24L0+1 is a unique wireless solution for compact, battery operated applications with stringent requirements on battery lifetime and cost. The transceiver operates in the license free worldwide 2.4GHz ISM band. It is specifically designed for two types of application: PC peripherals and ultra low power applications such as sports and wellness sensors. For PC peripherals such as wireless mice, keyboards and media center remotes it enables high performance and long battery life at a low solution cost. For sensor applications the ultra low power consumption and advanced power management enables battery lifetimes up to several years on a coin cell battery. 

The nRF24L01+ offers a smooth transition from the nRF24L01 
Improved co-existence performance and longer range 
The nRF24L01+ is mechanically, functional and electrical drop in compatible with the nRF24L01. In addition it offers significant improvements on co-existence performance with wide band inference sources like WiFi compared to nRF24L01. It also adds a 250 kbps air-data rate mode offering -94dBm sensitivity for longer range operation.

Compact 4x4mm package, low cost external BOM
The nRF24L01+ integrates a complete 2.4GHz RF transceiver, an RF
synthesizer, and full baseband logic including the unique Enhanced Shock-
Burst™ hardware link layer, advanced power management and a high-speed
SPI for the host controller interface. No external loop filters, resonators or
VCO varactor diodes are required, only a low cost ±60ppm 16MHz crystal,
matching circuitry and the antenna.